From a1dcb6628b9489504a3be2515580fc4de891f94a Mon Sep 17 00:00:00 2001 From: Jarek Poplawski Date: Mon, 25 May 2009 22:47:01 -0700 Subject: [PATCH] pkt_sched: gen_estimator: Fix signed integers right-shifts. Right-shifts of signed integers are implementation-defined so unportable. With feedback from: Eric Dumazet Signed-off-by: Jarek Poplawski Signed-off-by: David S. Miller --- net/core/gen_estimator.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/core/gen_estimator.c b/net/core/gen_estimator.c index 6d62d4618cfc..78e5bfc454ae 100644 --- a/net/core/gen_estimator.c +++ b/net/core/gen_estimator.c @@ -128,12 +128,12 @@ static void est_timer(unsigned long arg) npackets = e->bstats->packets; brate = (nbytes - e->last_bytes)<<(7 - idx); e->last_bytes = nbytes; - e->avbps += ((s64)(brate - e->avbps)) >> e->ewma_log; + e->avbps += (brate >> e->ewma_log) - (e->avbps >> e->ewma_log); e->rate_est->bps = (e->avbps+0xF)>>5; rate = (npackets - e->last_packets)<<(12 - idx); e->last_packets = npackets; - e->avpps += ((long)rate - (long)e->avpps) >> e->ewma_log; + e->avpps += (rate >> e->ewma_log) - (e->avpps >> e->ewma_log); e->rate_est->pps = (e->avpps+0x1FF)>>10; skip: read_unlock(&est_lock); -- 2.30.2